OBD-II · Engine and powertrain (P)
P0850
Park/neutral switch input circuit
What it means
The ECU gets a missing or implausible signal from the switch that tells it the gearbox is in Park or Neutral.
Symptoms
- engine may not crank, or cranks in only one selector position
- wrong gear shown on the display
- engine warning light
Likely causes, most likely first
| No. | Cause |
|---|---|
| 01 | misadjusted or faulty gear selector/range switch |
| 02 | wiring or connector fault |
| 03 | selector cable out of adjustment |
What to check, step by step
- 01Compare the selector position with the position shown in live data
- 02Check the selector cable adjustment
- 03Inspect the range switch connector and wiring
- 04Replace or adjust the switch